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Finding the Fourth Proportional to 43,321.40, 64,949.70 and 23,622.20

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Solution

The fourth proportional to 43,321.40, 64,949.70 and 23,622.20 is: 35,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.40 : 64,949.70 = 23,622.20 : x
  2. Step 2: Convert to fraction form
    43,321.40/64,949.70 = 23,622.20/x
  3. Step 3: Cross multiply
    43,321.40x = 64,949.70 × 23,622.20
  4. Step 4: Simplify right side
    43,321.40x = 1,534,254,803.34
  5. Step 5: Solve for x
    x = 1,534,254,803.34/43,321.40
  6. Step 6: Final answer
    x = 35,415.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.